Dr. Phosphorous. My problem was, there wasn't much detective workr. Plus, the dialogue was just crap.
Also, Batman beat the dude with baking soda. BAKING SODA! They didn't need Batman for that job. They could have just brought in Mr. Wizard.
It remind me of the old Adam West Batman... The way he defeated Phosphourous. I liked it. Detective and Batman are awesome. Detective more then Batman, I'm waiting to see Morrison again, Ihope he kick some *** this time.